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Bitcoin Transaction Details - Part 1
 
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A look at how a transaction is constructed This video is part of a larger online course, "From Barter to Bitcoin: Society, Technology and the Future of Money" run by Prof. Bill Maurer and Prof. Donald J. Patterson In addition to the video on YouTube there is a variety of other content available to students enrolled in the class. "In 2008, a person calling himself or herself or themselves Satoshi Nakamoto released a paper suggesting a system for an anonymous, peer-to-peer alternative money. Bitcoin was born. Although not the first digital currency ever proposed, nor the first challenger to fiat money, bitcoin is the first to have captured the broad imagination of speculators, coders, regulators, criminals and the mass media. This course puts Bitcoin in context: how do we understand money as a social, political and technological phenomenon? From discussions of ancient transactions to the rise of state-issued currencies, we will explore the social and technical aspects of bitcoin, its predecessors and potential successors, and how its features echo aspects of many different historical transaction systems. No prior knowledge of economics or computing is required. There is little academic writing on bitcoin. And this may be the first truly academic class on the topic. We want to put bitcoin in a wider perspective, to reflect on what it means for society, politics and economics, as well as how it helps us think about money both a social and a technical phenomenon. This class is not an advanced seminar on bitcoin--we will not be delving deeply into the inner workings of the system, but instead providing a bird's-eye overview with enough technical detail for you to be able to put media stories, hype and hope around bitcoin in perspective. Similarly, this is not a class in monetary economics--we won't go too deeply into monetary theory or policy, the money supply, or inflation. Instead the class invites you to think more deeply about one of the oldest systems of technology on the planet, and most ubiquitous: money, whether coin, cash, credit card or cryptocurrency, we humans have been making money for most of the past 10,000 years. How we do so in the future is a question bitcoin just maybe helps us answer."
Views: 39518 djp3
Building a Blockchain in Under 15 Minutes - Programmer explains
 
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I wanted to demonstrate that the concept of a blockchain that powers almost all of the modern cryptocurrencies is very simple at its core. Bitcoin, Ethereum, Litecoin etc all are based on this blockchain technology. Many people think that the blockchain is a complicated thing while at it's core its just a clever use case of hashes. Enjoy guys! CODE: https://github.com/ivan-liljeqvist/SimpleBlockchain JOIN MY EXCLUSIVE MAILING LIST FOR EVEN MORE BLOCKCHAIN KNOWLEDGE: http://eepurl.com/c0hyc9 ESSENTIAL CRYPTO RESOURCES Hardware wallets: ♥ TREZOR https://trezor.io ♥ LEDGER NANO S https://www.ledgerwallet.com/r/4607 To buy cryptocurrencies: ♥ Coinbase https://www.coinbase.com/join/529bab0ab08ded7080000019 JOIN SLACK COMMUNITY http://slack-invite-ivan-on-tech.herokuapp.com https://steemit.com/@ivanli
Views: 422610 Ivan on Tech
How Bitcoin mining actually works - What is the "cryptographic puzzle"?
 
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In this video I try to breakdown the "cryptographic problem" that people reference when they talk about bitcoin mining. 13uJjYF12aRVdwaiTmALx5XDfguQ9MnYtK
Views: 67199 Keifer Kif
Three Easy Ways to Generate Bitcoin Addresses on your Website
 
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This tutorial goes over 3 easy ways to generating fresh bitcoin addresses on the fly for your website. coinbase.com bitpay.com block.io blockchain.info blockchain.info/q/newkey phpfiddle: http://phpfiddle.org/main/code/g5hu-cez3 phpCoinAddress: https://github.com/zamgo/PHPCoinAddress code example w/ phpcoinaddress: http://pastebin.com/BX0xLfU9
Views: 12391 m1xolyd1an
Blockchain 101 - A Visual Demo
 
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This is a very basic visual introduction to the concepts behind a blockchain. We introduce the idea of an immutable ledger using an interactive web demo. Part 2 is here: https://youtu.be/xIDL_akeras If you are interested in playing with this on your own, it is available online at: http://anders.com/blockchain/ The code that runs this demo is also on GitHub: https://github.com/anders94/blockchain-demo I'm @anders94 on Twitter and @andersbrownworth on Steemit. Donations: BTC: 1K3NvcuZzVTueHW1qhkG2Cm3viRkh2EXJp ETH: 0x84a90e21d9d02e30ddcea56d618aa75ba90331ff ETC: 0xab75ad757c89fa33b92090193a797e6700769ef8
Views: 964398 Anders Brownworth
Simple Blockchain in Python WITH MINING!
 
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In this video we'll be creating our own blockchain in Python! We'll also be using SHA256 for our proof-of-work to mine our blockchain. Go to https://howcode.org for more! Source code: https://howco.de/simple-python-blockchain Link to DigitalOcean: http://howco.de/d_ocean Link to howCode Facebook: http://howco.de/fb Link to howCode Twitter: http://howco.de/twitter Link to /r/howCode: http://howco.de/reddit Don't forget to subscribe for more!
Views: 27337 howCode
Blockchain/Bitcoin for beginners 6: blocks and mining, content and creation of bitcoin blocks
 
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In this video we introduce the basic concepts behind how new blocks are created in the Bitcoin blockchain. We start by taking another look at the blockchain.info website to see some sample blocks and then to a quick screencast explaining how new, unconfirmed transactions are collected by mining nodes and included in new transaction blocks, whose header needs to be hashed along with a random number to produce an output hash meeting a set requirement. I mention that the requirement is that the generated hash starts with a specified number of leading zeros...this is a slight (and very common) simplification, the reality is that the hash must be LESS than or equal to a specic 256 bit binary number. See here: https://youtu.be/4QxOUwG8a2Y I introduce the concepts of difficulty targets and validation of blocks
Views: 10500 Matt Thomas
Creating a blockchain with Javascript (Blockchain, part 1)
 
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Learn how to write your own Blockchain with JavaScript. In this video I'll show you what is behind a blockchain by using simple code. It's not a complete implementation, but enough to understand how blockchains work and how they guarantee that blocks can never be changed. After creating our blockchain we'll try and tamper with it. This will demonstrate a blockchains ability to detect fraud. Next video (implementing proof-of-work): https://youtu.be/HneatE69814 💰 Want to buy Bitcoin or Ethereum? Buy for $100 and get $10 free (through my affiliate link): https://www.coinbase.com/join/59284524822a3d0b19e11134 ► Source code Available on GitHub: https://github.com/SavjeeTutorials/SavjeeCoin ► About me 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be ✉️ Subscribe to newsletter: https://goo.gl/nueDfz 👍🏻 Like my Facebook page: https://www.facebook.com/savjee
Bitcoin/Altcoin Developer Guide - 2 - Block Headers and Their Contents
 
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In these tutorials I teach you how become a bitcoin/altcoin developer. I will be going through the entire bitcoin developer reference and in each tutorial I will explain one or more key concepts involving bitcoin and altcoins. Bitcoin Stack Exchange https://bitcoin.stackexchange.com/ Developer reference https://bitcoin.org/en/developer-reference Source Code for Bitcoin: https://github.com/bitcoin/bitcoin Installation guide for Bitcoin Core on Unix: https://github.com/bitcoin/bitcoin/blob/master/doc/build-unix.md Installation guide for Windows: https://github.com/bitcoin/bitcoin/blob/master/doc/build-windows.md
Views: 288 Oscar Chambers
Flutter - Build Cryptocurrency App From Scratch | Android & iOS | Bitcoin | Full tutorial
 
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In this crash course for Flutter, I'll guide you through the creation of a Cryptocurrency App to track all the coins data in realtime. You can follow along on both Windows and Mac and you'll be able to run the code written in this tutorial on both Android and iOS. We will discuss topics such as: - Building layouts - Widgets - States - Basic Dart - Dividing Code - Using and Creating widgets - Text Input - Widget Decoration - Theming - Future - Async & Await - Coin market - Deal with android & ios Give star for this project on git and like the video. Github repo (for this project): https://goo.gl/ddqUj8 NOTE: You can upload this app on playstore/appstore athough this is an opensource project . I will keep updating this project in future. Be sure to ask for help in the comments if you need any. Suggestions for future Flutter tutorials are also very welcome! :) Flutter is an SDK owned by Google to create applications for Android and iOS using a single codebase. Flutter uses the Dart programming language (also owned by Google). Flutter was in beta when I released this video, so things might still change a bit. But the SDK is already mature enough to write some cool production apps! Please Subscribe my channel to motivate me . Subscribe Our Channel : https://goo.gl/BlFui4 For Fun - https://www.youtube.com/channel/UC6i0... Connect with us on social media: Facebook: https://www.facebook.com/mtechviral Pawan Kumar - https://www.facebook.com/imthepk Ask Pawan Kumar - https://www.facebook.com/thepawankumaar Instagram - imthepk Twitter: https://twitter.com/mtechviral LIKE | SHARE | SUBSCRIBE FOR MORE VIDEOS LIKE THIS THANKS FOR WATCHING!
Extracting data from the bitcoin blockchain
 
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In this video, we will take the output of a blockparser and use linux tools to extract specific data like addresses, blockhashes and merkleroots. We will also learn that some wallets take Bitcoin addresses, hash them with SHA 256 and use the result as a private key and transfer bitcoin to the corresponding addresses. Crazy Stuff! Links: How to install and run a Blockparser for the Bitcoin Blockchain? https://youtu.be/1uDc8OYPJwk https://github.com/gcarq/rusty-blockparser https://www.bitaddress.org https://blockchain.info/ Sample data from the Bitcoin Blockchain: https://github.com/cevahir/bitcoin Commands: $ echo -n 1NiNja1bUmhSoTXozBRBEtR8LeF9TGbZBN | sha256sum $ head tx_out-0-*.csv > text.csv $ awk -F “;” ‘{print $5}’ test.csv > test_addresses.txt $ head blocks-0-*.csv | awk -F “;” ‘{print $1}’ $ head blocks-0-*.csv | awk -F “;” ‘{print $6}’ $ awk -F “;” ‘{print $5}’ tx_out-0-*.csv > addresses.txt
Views: 481 Coding with Canbo
Blockchain Applications | Top 5 Decentralized Applications | Blockchain Training | Edureka
 
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***** Blockchain Training : https://www.edureka.co/blockchain-training ***** This Edureka video on "Blockchain Applications" will give you a walkthrough on how traditional applications differ from Blockchain applications and how Blockchain applications are developed. It will also list down the top 5 Blockchain applications that have been developed till date. Below are the topics covered in this video: 0:35 - Traditional application 3:00 - Blockchain Applications 5:36 - Technology Stack 6:45 - Advantage of Dapps 8:45 - Top 5 Blockchain Applications For doubts & queries on Blockchain, post the same on Edureka Community: https://www.edureka.co/community/blockchain Blockchain Blog Series: https://goo.gl/DPoAHR Blockchain Tutorial Playlist: http://bit.ly/2PZb8fd - - - - - - - - - - - - - - - - - Do subscribe to our channel and hit the bell icon to never miss an update from us in the future: https://goo.gl/6ohpTV Instagram: https://www.instagram.com/edureka_learning/ Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka #blockchain #decentralisedapplications #blockchainexplained #blockchainonlinetraining #blockchainapplications #blockchainforbeginners - - - - - - - - - - - - - - - - - About the Course Edureka's Blockchain Course is designed to introduce you to the concept of Blockchain and explain the fundamentals of blockchain and bitcoin. Blockchain course will provide an overview of the structure and mechanism of blockchain. As a beginner, you will be learning the importance of consensus in transactions, how transactions are stored on blockchain, history of bitcoin and how to use bitcoin. Furthermore, you will be taught about the Ethereum platform and its programming language. You will setup your own private blockchain environment using Ethereum. Also, you will develop a smart contract on private Ethereum blockchain and will be deploying the contract from web and console. The course is fed with various use-cases and examples, which makes the learning more interesting. After completing this course, you should be able to: 1. Comprehend the cryptography and cryptocurrency concepts 2. Encompass the concept of a blockchain 3. Understand the importance of blockchain technology 4. Have a deep insight into bitcoin and its network 5. Perceive, how bitcoin transactions are validated by miners 6. Create and use bitcoin account effectively 7. Understand Ethereum blockchain 8. Learn Solidity: Prominent language to develop smart contracts 9. Deploy your private blockchain on the web where you can visually see your chains 10. Send transactions between nodes 11. Develop more than one nodes on the same blockchain 12. Making your own cryptocurrency 13. Discuss the compelling use-cases of the blockchain 14. Interpret the prospects of the blockchain 15. Assess, how blockchain can improve your business standards. ----------------------------------- Who should go for this course? Anyone having basic programming knowledge and has a zeal to learn new technology can take up the course. Students and professionals aspiring to make a career in the Blockchain technology should opt for the course. ----------------------------------- Why learn Blockchain? Blockchain is a revolutionary technology. It is an ordered back linked-list data structure of blocks of transactions stored in a decentralized peer-to-peer network. It is the underlying infrastructure for bitcoin, a popular cryptocurrency. In near future, many companies will be adopting blockchain technologies for trading publicly. Apart from bitcoin, it can be used for a wide variety of applications such as tracking ownership, digital assets, physical assets, or voting rights. It can also store and run computer code called ‘smart contracts’. However, blockchain is still new and the communities are still exploring the best ways in which it can be used. For more information, Please write back to us at [email protected] or call us at IND: 9606058406 / US: 18338555775 (toll free).
Views: 8260 edureka!
How Bitcoin Works in 5 Minutes (Technical)
 
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A short introduction to how Bitcoin Works. Want more? Check out my new in-depth course on the latest in Bitcoin, Blockchain, and a survey of the most exciting projects coming out (Ethereum, etc): https://app.pluralsight.com/library/courses/bitcoin-decentralized-technology Lots of demos on how to buy, send, store (hardware, paper wallet). how to use javascript to send bitcoin. How to create Ethereum Smart Contract, much more. Written Version: http://www.imponderablethings.com/2014/04/how-bitcoin-works-in-5-minutes.html Less technical version: https://www.youtube.com/watch?v=t5JGQXCTe3c Donation address: 1K7A6wsyxj6fThtMYcNu6X8bLbnNKovgtP Germain caption translation provided by adi331 : 19s6rqRfHa19w7wcgwtCumPs1vdLDj1VVo (thanks!!)
Views: 5690504 CuriousInventor
Dissecting a P2PKH Bitcoin Transaction down to the last Byte
 
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We aim to understand how bitcoin nodes validate a bitcoin transaction by concatenation of output and input scripts . Therefor we analyze the format of Bitcoin transaction. This is needed to prepare a future video about Revocable Sequence Maturity contracts which are need for the construction of payment channels in the lightning network. I will appreciate the kindness if you leave a (small!) tip. BTC-address: 1KwjU4UknzbXh1rnP1jAKz9wwjcuYwe9AC segwit: 38fWwbsxvVeBsJpH4bbHTBai8jT8RUa7DE Leave an even more anonymous tip via the ⚡ Lightning ⚡ network (: Get the invoice with this curl statement: curl -i -H "Accept: application/json" -d '{"amount":ENTER_AN_INTEGER_AMOUNT_OF_SATOSHIS_INSTEAD_OF_THIS}' https://ln.rene-pickhardt.de/invoice Big thanks to Fulmo from Berlin for previous support of my work! My web site: https://www.rene-pickhardt.de and Twitter: https://twitter.com/renepickhardt as well as my lightning node: https://ln.rene-pickhardt.de Useful links and tools: * https://en.bitcoin.it/wiki/Transaction * https://wschae.github.io/build/editor.html (tool for executing bitcoin scripts) * http://lenschulwitz.com/base58 * https://en.bitcoin.it/wiki/Base58Check_encoding Evaluated Bitcoin transaction: https://www.blockchain.com/btc/tx/45bf99a6d2caa6fe092cdb77d9fd3364ada30133c7c8d01e86eaf10682168d70 Version: 01000000 Input counter: 01 ⇨ 1 input script TxOutHash: 2ad07447509a4fa9f3b45d3bde74b774b46b569dfa1d0728120c355b7b26312f Hash of the spent transaction (we need this later) 2a d0 74 47 50 9a 4f a9 f3 b4 5d 3b de 74 b7 74 b4 6b 56 9d fa 1d 07 28 12 0c 35 5b 7b 26 31 2f 2f31267b5b350c1228071dfa9d566bb474b774de3b5db4f3a94f9a504774d02a (this transaction was being spent) TxOut index: 00000000 (first output in the output of previous tx) Script length: 6a ⇨ 6*16 + 10 = 106 Bytes ⇨ 212 hex digits Input script:473044022100edf664ebfc12a3998d242fbdd8a1a44c13e4e7f6d7dbddde9ae5610bfd2c9c38021f74ec1e2eca7310baa17c60cbaaffa0503cee680f13fd9a10fd04f2910958c9012103486669962008e0713660b6d69117a65fcecd221d06c1e5077b4d9cd477c0cf98 Sequence: feffffff Dissect the input Length for data: 47 ⇨ hex2dec: 71 Bytes ⇨ 142 chars: signature: 3044022100edf664ebfc12a3998d242fbdd8a1a44c13e4e7f6d7dbddde9ae5610bfd2c9c38021f74ec1e2eca7310baa17c60cbaaffa0503cee680f13fd9a10fd04f2910958c901 Length for pub key: 21 ⇨ hex2dec: 33 Bytes ⇨ 66 chars pubkey: 03486669962008e0713660b6d69117a65fcecd221d06c1e5077b4d9cd477c0cf98 Check the bitcoin address from the input: RIPMED160(SHA256(pubkey)): CB226B9CC60C613DDDCB188E984F631764CEF143 Extend with version: 00CB226B9CC60C613DDDCB188E984F631764CEF143 Calculate checksum: SHA256(SHA256(extended Pubkey)): CE281C015A7230F46041D2DD640A6714725C25A0ED674D5E215318AA206A397F Checksum = first 4 Bytes: CE281C01 Address in hex: 00CB226B9CC60C613DDDCB188E984F631764CEF143CE281C01 Encode to base58: 1KwjU4UknzbXh1rnP1jAKz9wwjcuYwe9AC Output: 02102700000000000017a9144c8045932c5a4e57316e6e9c465fc1fba32d6ac38768380000000000001976a9144f6d76f02a5553617ec71820e9036afdcbf7d93c88ac693b0800 Do the same over again but only for the outputs: 01000000 01 911d280701fbaa08cd97646f5c3483284b4f37afeff3bf71f2b580063399bed5 2a000000 6a47304402202eada36986b14698473e34ace8a830725c39c5d3b2d8c5ccc39562758cd2c15c02205574c0d0b4a472ffee99696f2ead63e4c3a3ef9a35c9f71268542849e1721b0d0121031f64ef992820346838522cfa0babafc2638540ed58f9521e70ec0aa66c3bd709 feffffff Spent Output: (at the time of the tx of course unspent): #outputs: 02 ⇨ 2 Outputs: a861000000000000 ⇨ endian 61a8 ⇨ hex2dec: 25000 (Satoshi) Length: 19 ⇨ hex2dec = 25 Bytes ⇨ 50 hex digits: 76 ⇨ OP_DUP a9 ⇨ OP_HASH160 Length: 14 ⇨ hex2dec = 20 Bytes ⇨ 40 digits: Pubkey Hash: cfcc2ce2d8fc82b2b0837b6c1775d5edcffc107f 88 ⇨ OP_EQUALVERIFY ac ⇨ OP_CHECKSIG 50103b0000000000 ⇨ 3b1050 ⇨ hex2dec = 3870800 (change!) Length: 19 76 ⇨ OP_DUP a9 ⇨ OP_HASH160 Length: 14 Data: Pubkey Hash: 3828a52a8d8310c63581ab1fcbf418bffaf23e3a (change address pubkey) 88 ⇨ OP_EQUALVERIFY ac ⇨ OP_CHECKSIG Timelock: 91250800 final script which needs to be true so that the Transaction can be minded: 3044022100edf664ebfc12a3998d242fbdd8a1a44c13e4e7f6d7dbddde9ae5610bfd2c9c38021f74ec1e2eca7310baa17c60cbaaffa0503cee680f13fd9a10fd04f2910958c901 03486669962008e0713660b6d69117a65fcecd221d06c1e5077b4d9cd477c0cf98 OP_DUP OP_HASH160 cfcc2ce2d8fc82b2b0837b6c1775d5edcffc107f OP_EQUALVERIFY OP_CHECKSIG This script needs to evaluate true! Enter it to: https://wschae.github.io/build/editor.html
Views: 1163 René Pickhardt
How Bitcoin Mining Work's
 
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What is Bitcoin https://www.youtube.com/watch?v=WDvskHePAXU How to Mine Bitcoin https://www.youtube.com/watch?v=79KEJf4qmps How Bitcoin Mining Works Bitcoin Mining Works by Making a hash of it You can also watch my other video on Home to Mine Bitcoins ( Link is in Description ) This general ledger is a long list of blocks, known as the 'blockchain'. It can be used to explore any transaction made between any bitcoin addresses, at any point on the network. Whenever a new block of transactions is created, it is added to the blockchain, creating an increasingly lengthy list of all the transactions that ever took place on the bitcoin network. A constantly updated copy of the block is given to everyone who participates, so that they know what is going on. When a block of transactions is created, miners put it through a process. They take the information in the block, and apply a mathematical formula to it, turning it into something else. That something else is a far shorter, seemingly random sequence of letters and numbers known as a hash. This hash is stored along with the block, at the end of the blockchain at that point in time. Hashes have some interesting properties. It’s easy to produce a hash from a collection of data like a bitcoin block, but it’s practically impossible to work out what the data was just by looking at the hash. And while it is very easy to produce a hash from a large amount of data, each hash is unique. If you change just one character in a bitcoin block, its hash will change completely. Miners don’t just use the transactions in a block to generate a hash. Some other pieces of data are used too. One of these pieces of data is the hash of the last block stored in the blockchain. Because each block’s hash is produced using the hash of the block before it, it becomes a digital version of a wax seal. It confirms that this block – and every block after it – is legitimate, because if you tampered with it, everyone would know. If you tried to fake a transaction by changing a block that had already been stored in the blockchain, that block’s hash would change. If someone checked the block’s authenticity by running the hashing function on it, they’d find that the hash was different from the one already stored along with that block in the blockchain. The block would be instantly spotted as a fake. Because each block’s hash is used to help produce the hash of the next block in the chain, tampering with a block would also make the subsequent block’s hash wrong too. That would continue all the way down the chain, throwing everything out of whack. Competing for coins Butterfly Labs Bitforce mining rigSo, that’s how miners ‘seal off’ a block. They all compete with each other to do this, using software written specifically to mine blocks. Every time someone successfully creates a hash, they get a reward of 25 bitcoins, the blockchain is updated, and everyone on the network hears about it. That’s the incentive to keep mining, and keep the transactions working. The problem is that it’s very easy to produce a hash from a collection of data. Computers are really good at this. The bitcoin network has to make it more difficult, otherwise everyone would be hashing hundreds of transaction blocks each second, and all of the bitcoins would be mined in minutes. The bitcoin protocol deliberately makes it more difficult, by introducing something called ‘proof of work’. The bitcoin protocol won’t just accept any old hash. It demands that a block’s hash has to look a certain way; it must have a certain number of zeroes at the start. There’s no way of telling what a hash is going to look like before you produce it, and as soon as you include a new piece of data in the mix, the hash will be totally different. Miners aren’t supposed to meddle with the transaction data in a block, but they must change the data they’re using to create a different hash. They do this using another, random piece of data called a ‘nonce’. This is used with the transaction data to create a hash. If the hash doesn’t fit the required format, the nonce is changed, and the whole thing is hashed again. It can take many attempts to find a nonce that works, and all the miners in the network are trying to do it at the same time. That’s how miners earn their bitcoins. Please like share and comment on our Video For more videos Subscribe our Channel Also Follow us on Facebook : https://www.facebook.com/Tech.Solution001 Google+ : https://plus.google.com/113358335751493798275 Twitter : Instagram : Our Website Address : Subscribe our channel for more Videos
Views: 26 Tech Land
Blockchain Implementation with C# Part 1
 
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This video examines the block chain technology in the .Net framework, the video covers the block structure and the chain validations. How to create block chain in c#, block chain in c# .net core blockchain implementation, visual studio 2017 #selfhostwcf, #p2pnetworkprogramming,#netcorecommerce
How does a blockchain work - Simply Explained
 
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What is a blockchain and how do they work? I'll explain why blockchains are so special in simple and plain English! 💰 Want to buy Bitcoin or Ethereum? Buy for $100 and get $10 free (through my affiliate link): https://www.coinbase.com/join/59284524822a3d0b19e11134 📚 Sources can be found on my website: https://www.savjee.be/videos/simply-explained/how-does-a-blockchain-work/ 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be ✉️ Subscribe to newsletter: https://goo.gl/nueDfz 👍🏻 Like my Facebook page: https://www.facebook.com/savjee
Views: 2937047 Simply Explained - Savjee
Blockchain 101 Ep 24 - How to mine Bitcoin
 
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Bitcoin is produced through mining. Every 10 minutes, miners compete to solve a complex math problem. Whoever finds the answer first, mines the block, and receives Bitcoins as a block reward. In early days, mining can be done using CPUs. However, with the increasing number of miners, CPUs are no longer powerful enough to mine Bitcoins, and people turned to mining rigs. To start mining, you need to prepare mining rigs, Bitcoin address, mining software, etc. Currently, the computing power required is too high, solo miners find it hard to get a block reward. Hence, many miners join a mining pool to do it together, miners are only responsible for providing the computing power, and the mining pool processes the transactions. When the pool receives Bitcoins, it will distribute to miners based on their contributions ensuring a stable rate of return. Watch the video here! Huobi Pro will post a question in our Tweet via our Twitter account (https://twitter.com/Huobi_Pro) each time we put up an episode of Blockchain 101 post on our Twitter account, we will randomly select 20 people who answered in the format [UIDxxxxxxxx, correct answer] and retweet our post will be entitled to 1 HT each. Note that the UID entered MUST be a valid Huobi registered account. What are you waiting for? Fastest fingers first! Grab your HT now!
Views: 781 Huobi Global
Tracking Bitcoin Transactions on the Blockchain - SANS DFIR Summit 2017
 
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Bitcoins are a commonly-used currency among cyber criminals for exchanging goods and services and receiving payments from ransomware. While cryptocurrency claims to promote anonymity, the nature of the blockchain’s public ledger means that criminal activities can be traced and correlated. This presentation will cover a brief high-level overview of how transactions on the blockchain work and will focus on how to apply this knowledge in order to both manually and automatically map out transactions, associate bitcoin addresses, and identify potential cybercriminal-owned bitcoin wallets with the goal of providing context to the scale and duration of a campaign impacting your enterprise. Examples will include identifying a Locky affiliate’s infrastructure, attributing the Shark/Atom ransomware, and identifying “bitcoin exchanges” on the blockchain. Kevin Perlow, Associate, Booz Allen Hamilton
Mining Bitcoin with pencil and paper
 
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Bitcoins are mined using a cryptographic algorithm called SHA-256. This algorithm is simple enough to be done with pencil and paper, as I show in this video. Not surprisingly, this is a thoroughly impractical way to mine. One round of the algorithm takes 16 minutes, 45 seconds which works out to a hash rate of 0.67 hashes per day. For details, see http://righto.com/sha
Views: 1195218 Ken Shirriff
Blockchain/Bitcoin for beginners 3: public/private keys, signatures... and first ever transaction
 
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Detailed overview of public/private key encryption and live demo of exactly how digital signatures work on Mac, combining public and private keys and hash functions. Welcome to episode 3 of my series on Blockchain/Bitcoin. I'm joined once again by my girlfriend Nadisha who is my classroom pupil... I build on the hash function concepts from the previous episode and explain the basic concepts public and private keys and how to use them to create digital signatures - a key part of the bitcoin infrastructure. We demonstrate in a Mac terminal how you can generate your own keys and encrypt and decrypt and sign your own resources - learning by doing always works. We touch on bitcoin addresses, what they represent and how they are created. Finally I go back for a refresh of the bitcoin blockchain browser and look at the first ever bitcoin transaction in the "Genesis Block" to show what a real bitcoin address looks like. Bitcoin Blockchain browser https://blockchain.info Online hash calculator - great way to practice and familiarise with hash functions - one of the most important building blocks of Blockchain/Bitcoin http://www.fileformat.info/tool/hash.htm Course to date (previous videos) 1. Blockchain introduction https://youtu.be/xwA2TkcAQgQ 2. Hashing, blockchain networks and look at blockchain browser https://youtu.be/oxwMnqFNq9M SAMPLE COMMANDS: You will need to use your own document - pick any document, obviously your hash values will be different to mine. Also I had to use (right arrow) - since comments do not allow "chevron" symbols # EXAMPLE 1: # generate public and private keys openssl genrsa -out mykey 2048; cp mykey privatekey; openssl rsa -in mykey -pubout -out publickey; rm mike #encrypt with public key echo “the cat sat on the mat” | openssl rsautl -encrypt -pubin -inkey publicly (right arrow) cipher.txt # show the garbage cat cipher.txt # decrypt with private key - The cat sat on the mat cat cipher.txt | openssl rsautl -decrypt -inkey privately # EXAMPLE 2: Sign Alice in wonderland #check the SHA256 hash of the document to send - d9db7b8984d808b2821070cc6cc76e4415229d3356452b2a0f06ec3608f13b6c shasum -a 256 alice-in-wonderland.txt | cut -d" " -f1 # create a text file called signature which hashes the document and encrypts with private key shasum -a 256 alice-in-wonderland.txt | cut -d" " -f1 | openssl rsautl -inkey privatekey -sign (right arrow) signature # wrap the signature up with the public key, the document and the signature and send it … we just copy to another folder tar -cvf alice.tar signature alice-in-wonderland.txt publickey;mkdir -p inbox;cp alice.tar inbox;cd inbox;tar -xvf alice.tar # inspect the public key and verify with the sender that it belongs to the sender cat publickey #decrypt the signature with the received public key - d9db7b8984d808b2821070cc6cc76e4415229d3356452b2a0f06ec3608f13b6c openssl rsautl -inkey publickey -pubin -in signature # hash the received document - d9db7b8984d808b2821070cc6cc76e4415229d3356452b2a0f06ec3608f13b6c shasum -a 256 alice-in-wonderland.txt | cut -d" " -f1 # if they are both the same then the document cannot have been changed since it was signed by the genuine owner of the # private key corresponding to the public key
Views: 20341 Matt Thomas
Python Bitcoin Tutorial for Beginners
 
18:04
My Book: https://www.amazon.com/Building-Bitcoin-Websites-Beginners-Development/dp/153494544X A simple introduction tutorial to get started with the pybitcointools Python library. https://github.com/vbuterin/pybitcointools
Views: 59653 m1xolyd1an
What Bitcoin Miners Actually Do
 
09:54
Blockchain explorers: blockchain.info, blockr.io, blockexplorer.com To do a SHA 256 on a string of text: http://www.xorbin.com/tools/sha256-hash-calculator To do a SHA 256 on a file: https://md5file.com/calculator My Medium Post that I used to make this video: https://medium.com/@TheAlexGalaxy/what-bitcoin-miners-actually-do-bc80185c0e52#.91ac9ld9h
Views: 103725 Alex Millar
Blockchain 101 Ep 16 - What's the fee for Bitcoin transactions?
 
01:07
Bitcoin transaction fees give Bitcoin miners an incentive to include transactions into their blocks and provide sufficient hashing power, securing the Bitcoin network. Some also call it “miner fees”. When making a transaction over the Bitcoin network, one usually pays for miners to facilitate the transaction. The fee tends to be around 0.0001-0.0015 Bitcoin. Block sizes are limited and can only support limited number of transactions. Therefore, miners will prioritize transactions that pay higher fees. A higher fee means the transaction can be processed sooner. This raises the threshold of making Bitcoin transactions and also effectively protects the blockchain from spams while ensuring miners still have the incentive to maintain the Bitcoin network even after all the Bitcoins are mined. Watch the video here! Huobi Pro will post a question in our Tweet via our Twitter account (https://twitter.com/Huobi_Pro) each time we put up an episode of Blockchain 101 post on our Twitter account, we will randomly select 20 people who answered in the format [UIDxxxxxxxx, correct answer] and retweet our post will be entitled to 1 HT each. Note that the UID entered MUST be a valid Huobi registered account. What are you waiting for? Fastest fingers first! Grab your HT now!
Views: 935 Huobi Global
Blockchain 101 Ep 02 - What is Bitcoin
 
01:09
The concept of Bitcoin (BTC) was created by Satoshi Nakamoto as a peer-to-peer, decentralized digital currency. In 2009, Nakamoto mined the first block and received 50 Bitcoins as a block reward. The block reward is halved every four years and all Bitcoins are estimated to be mined by 2140, with a total supply of 21 million in circulation. As time passed, Bitcoin gradually attained market recognition. Germany became the first country in the world to accept Bitcoin payments; Microsoft, Dell and other renowned companies followed suit; You can even buy an Alienware computer using Bitcoins! Also, investors can invest in Bitcoins on reputable exchange platforms such as Huobi. Hope you understand more about Bitcoin now! Still unsure? Follow Huobi’s “100 Things You Should Know About Blockchain” and become an expert in no time! Huobi Pro will post a question in our Tweet via our Twitter account each time we put up an episode of Blockchain 101 post on our Twitter account, first 20 people who answered in the format [UIDxxxxxxxx, correct answer] and retweet our post will be entitled to 1 HT each. Note that the UID entered MUST be a valid Huobi registered account. Eligible winners from each episode will be awarded with HT which will be deposited into your Huobi Pro account on the following Tuesday. What are you waiting for? Fastest fingers first! Grab your HT now! Official Twitter account: https://twitter.com/Huobi_Pro
Views: 2297 Huobi Global
Use Blockchain API to Calculate Time Until Next Bitcoin Block Halving
 
09:10
BTC: 1NPrfWgJfkANmd1jt88A141PjhiarT8d9U Using PHP cURL and Blockchain API. Written tutorial: http://blog.blockchain.com/2015/11/18/using-the-blockchain-api-to-determine-the-time-left-until-the-next-bitcoin-block-halving/
Views: 610 m1xolyd1an
(Audiobook) The Original Bitcoin White Paper by Satoshi Nakamoto
 
26:01
Donations greatly appreciated! Bitcoin: 1KdkeDArSd5LVaLVh9WePaHqB9yHLaKPfv I worked very hard to create this interactive audiobook format and graciously appreciate Bitcoin donations. After wanting to read the original Bitcoin Whitepaper, I discovered there wasn't a good audiobook version of it with graphs and formulas. So I went ahead and made it, using a slower reading speed so a viewer can try and take it all in. I have no affiliation with bitcoin.org or Satoshi Nakamoto. Download the original whitepaper here. http://bitcoin.org/bitcoin.pdf From wikipedia.... In November 2008, a paper was posted on the internet under the name Satoshi Nakamoto titled Bitcoin: A Peer-to-Peer Electronic Cash System. This paper detailed methods of using a peer-to-peer network to generate what was described as "a system for electronic transactions without relying on trust". In January 2009, the Bitcoin network came into existence with the release of the first open source Bitcoin client and the issuance of the first bitcoins, with Satoshi Nakamoto mining the first block of bitcoins ever (known as the "genesis block"), which had a reward of 50 bitcoins. The value of the first bitcoin transactions were negotiated by individuals on the bitcointalk forums with one notable transaction involving a 10,000 BTC pizza. "Satoshi Nakamoto" is a pseudonym for the unknown person or people who designed the original Bitcoin protocol in 2008 and launched the network in 2009. Nakamoto was responsible for creating the majority of the official Bitcoin software and was active in making modifications and posting technical information on the BitcoinTalk Forum.[73] I apologize in advance for the few wording mistakes. I tried to notate most of them.
Views: 43214 Bitcoin WhitePaper
Wie kauft man Bitcoin? Einfach erklärt! #Bitpanda
 
13:22
Hallo zusammen, in diesem Video zeige ich euch, wie ihr eure ersten Bitcoin sicher und einfach kaufen könnt. Viel Spaß! #Bitcoin #ersterKauf #Investieren - - - - - - - - - - - - - - - - - - - - - - - - - - - Hier kannst du einfach Kryptowährungen kaufen (Ref-Links) - - - - - - - - - - - - - - - - - - - - - - - - - - - ► https://www.bitpanda.com/?ref=869098300155224617 - - - - - - - - - - - - - - - - - - - - - - - - - - - !NEU! Merchandise !NEU! - - - - - - - - - - - - - - - - - - - - - - - - - - - ► https://shop.spreadshirt.de/blocktrainer - - - - - - - - - - - - - - - - - - - - - - - - - - - Weitere Kanäle - - - - - - - - - - - - - - - - - - - - - - - - - - - Twitch (Gaming Livestreams) ► https://www.twitch.tv/blocktrainer Zweitkanal Café Informell ► https://bit.ly/2Nj81OT DISCORD ► https://discord.gg/2tVtxAX TELEGRAM ► https://t.me/blocktrainergruppe TWITTER ► https://twitter.com/blocktrainer - - - - - - - - - - - - - - - - - - - - - - - - - - - Falls du mich unterstützen möchtest, findest du hier ein paar Möglichkeiten - - - - - - - - - - - - - - - - - - - - - - - - - - - Patreon ► https://www.patreon.com/Blocktrainer Ledger (Affiliate) ► https://www.ledger.com?r=1aa9 IOTA ► LQ9QTHVRHRFDVZNTQUECVFDPYO9H9OAVQTPCXGF9OGXXPWSVRGMJL9ZIVJGMLVTWYHTMTCMAKJKCWCTKXRRUKDLWJW Bitcoin ► 3Ggq3SPAB8dfYeKfMdccuZRQBpUFQF5bYw ► https://blockchain.info/qr?data=3Ggq3SPAB8dfYeKfMdccuZRQBpUFQF5bYw&size=200 HoriZEN ► znaBfP9jm2phW3TQqdgb3wsqprfw2pkFJQ5
Views: 1945 Der Blocktrainer
Blockchain 101 Ep 12 - How does Bitcoin control its supply
 
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Bitcoin is a virtual currency designed for deflation, with total supply cap of 21 million. Why? When designing Bitcoin, Satoshi set each Bitcoin to be divisible to 0.00000001. The block reward was 50 Bitcoins, and such reward will be halved every 210,000 blocks. If a new block is generated every 10 minutes, it will take around four years to mine 210,000 blocks. Since 2009, the block reward has been halved twice, the block reward is currently 12.5 Bitcoins. Around Year 2045, 99.95% of Bitcoins will be issued, and the last Bitcoin would be mined in the year 2140, reaching the total supply of 21 million. (Note: The actual figure is 20999999.97690000) The fundamental soundness of Bitcoin’s deflationary nature has caused quite a debate among economists, but this mechanism has encouraged miners to start sooner than later, which provides processing power and security to the network. Watch the video here! Huobi Pro will post a question in our Tweet via our Twitter account (https://twitter.com/Huobi_Pro) each time we put up an episode of Blockchain 101 post on our Twitter account, first 20 people who answered in the format [UIDxxxxxxxx, correct answer] and retweet our post will be entitled to 1 HT each. Note that the UID entered MUST be a valid Huobi registered account. What are you waiting for? Fastest fingers first! Grab your HT now!
Views: 1290 Huobi Global
Bitcoin 🔴 24/7 Live 🚀 Cryptocurrency, Bitcoin, Ethereum & Altcoin Trading Price Index🚀
 
08:20:37
Bitcoin 🔴 24/7 Live 🚀 Cryptocurrency, Bitcoin, Ethereum & Altcoin Trading Price Index🚀 Bitcoin LIVE Price Index. Bitcoin Top Ten Ticker News and Discussion, Real-Time LIVE Ticker, Charts, Tools & Statistics. #bitcoin #blockchain #cryptocurrency #BITCOIN Todays Breaking Bitcoin News.You Cant Stop The #Bitcoin! Watch #Bitcoin News LIVE 24/7 #Bitcoin Now! Bitcoin Music. #BITCOIN LIVE 24/7 watch LIVE crypto charts, tools stats now all #bitcoin all day! OhioBitcoin.com is a completely dynamic, automatic cryptocurrency price index. We use a custom written professionally designed blockchain crypto data api to show live cryptocurrency prices, market cap, charts and other data related to bitcoin and 1700 other altcoins in a livestream format. OhioBitcoin.com is very similar to CoinMarketCap in that in displays a list of the top 1700+ cryptocurrencies. The difference at OhioBitcoin.com is there are no ads to slow you down and the blockchain cryptocurrency data is dynamic and delivered in real time unlike coinmarketcap which delivers a static display of price data which requires a page refresh to update which also slows you down and may by that point be giving you outdated price information. You the user while at OhioBitcoin.com can easily sort this crypto list based on cryptocurrency rank, price, marketcap, volume among other unique and useful features. You can select which column/data to show inside your crypto list – Prices, 24h% Changes, hourly changes, 7D% Changes, Market Cap, Charts, Volume and many other cryptocurrency data options. Every coin is linked with a more detailed analysis page of the cryptocurrency you select– Once you click on a coin this will be automatically generated for you by our custom API using all market data of that crypto coin. Exactly like coin market cap live updates except the major difference is OhioBitcoin.com is much faster and the data you see is not static it is dynamic so no need to refresh the web browser repeatedly for a price update! Check out our latest performance report from GTMetrix: https://gtmetrix.com/reports/ohiobitcoin.com/slUKNbZ6 Check out a side by side comparison CoinMArketCap Vs OhioBitcoin.com: https://gtmetrix.com/compare/slUKNbZ6/xRPzLmaE OhioBitcoin.com also maintains and provides a comprehensive list of the 200+ best cryptocurrency exchanges by using our custom blockchain crypto markets api data provided by a standard blockchain coin exchange price public API. OhioBitcoin.com and Ohio Bitcoin channel video livestream feed use the same custom blockchain public API to grab exchanges trading volume, alexa rank, over 11,000 cryptocurrency market trading pairs & much more… OhioBitcoin.com features – Best Exchanges List :- Provides and maintains a 200+ exchanges list. You can compare the exchange 24H trading volume and bitcoin or cryptocurrency price in a beautiful easy to read and use datatable format. OhioBitcoin.com Market Pairs / Coins :- Find coins support and markets / trading pairs supported by top cryptocurrency exchanges. Features over 11,000 market trading pairs. For more please visit: https://OhioBitcoin.com ▶️DON'T CLICK THIS!!! - http://bit.ly/DONTCLIKTHIS ▶️Buy Bitcoin Here: https://ohiobitcoin.com/currencies/BTC/bitcoin/ ▶️Twitter: http://twitter.com/OhioBitcoin ▶️Facebook: https://www.facebook.com/ohiobitcoin ▶️SoundCloud: https://soundcloud.com/ohiobitcoin ▶️DirectConnect: https://ohiobitcoin.com/contact/ ▶️Pinterest: https://pinterest.com/ohiobitcoin ▶️Tumblr: https://ohiobitcoindotcom.tumblr.com ▶️Minds: https://minds.com/ohiobitcoin Thanks for watching the OhioBitcoin.com Bitcoin News Channel today! We appreciate you spending some of your valuable time with us! Disclaimer: Price articles and markets updates are intended for informational purposes only and should not to be considered as trading advice. Neither OhioBitcoin.com nor the author is responsible for any losses or gains, as the ultimate decision to conduct a trade is made by the reader. Always remember that only those in possession of their own private keys are in control of their own “money.” If you enjoy this type of content please smash the like and subscribe buttons below it helps us to get more views. Thanks again. See you with more bitcoin headline news and analysis soon! http://ohiobitcoin.com
Views: 139 Ohio Bitcoin
Bitcoin Hasn't Done THIS In 1 Year! April 2019 Long Term Price Prediction, News & Trade Analysis
 
01:27:33
***My fully comprehensive road map to becoming a COMPLETE Trading Boss! + VIP DIscord Access*** https://krown-trading.teachable.com/p/trade-like-a-professional-the-art-and-application-of-technical-analysis/ All my trading strategies revealed in a series of 39 Modules of Video and PowerPoint presentation format over 32 hours long + Bonus Material! Reviews inside! ***Master Your Options*** - https://krown-trading.teachable.com/p/master-your-options/ - Years as a Professional Market Maker Authorized Trader synthesized down into a 42 Module Road Map for the Purpose of Derivative Domination ***Krown Jewel Indicator Mastery*** https://krown-trading.teachable.com/?affcode=236462_6ozjtirq My preferred method of scalping by timing both entries and exits with 5 unique oscillators each suited for specific trading styles Complimentary 10% off trading fees for Deribit ***https://www.deribit.com/reg-1170.7653*** Preferred Forex Broker (BTC Deposits) **https://evolve.markets/r/1010d2dc** Complimentary 10% off trading fees for BitMEX https://www.bitmex.com/register/4l6ovV ***Cave Discord*** https://discord.gg/5Zwuum8 ***Digital Den*** https://discord.gg/CsvbmDQ Please do consider gently tapping the like & subscribe button as I update my thoughts on the market daily! ***Complimentary Portfolio Tracking and Balancing Tool*** https://docs.google.com/spreadsheets/d/1Y8WtgxCZen4yt8UwAmqxQjfDR42-kFQ8iRx_3rJi0CI/edit#gid=1158545460 If you feel so inclined to support my Coffee and Ground Beef diet then here is a link to my BTC address - 3QnMhH3QKjoNMprArJ2PyY2t8MWPCDtmJv Recommended Reading for Learning the Art of Trading - Technical Analysis and Stock Market Profits https://amzn.to/2qQAz7A Reminiscences of a Stock Operater https://amzn.to/2F3WD3G Also checkout my Steemit Account as I do post exclusive content here - https://steemit.com/@realcrowncrypto Twitter for Intra-day Mini Update - https://twitter.com/KrownCryptoCave #Bitcoin #BitcoinNews #BitcoinAnalysis Disclaimer - The content in this video and on this channel are not intended to be financial advice. The content in this video and on this channel are only intended for entertainment purposes only! Bitcoin Analysis, Top bitcoin analysis, price prediction, Bitcoin Trading, Bitcoin 2018, Bitcoin Crash, Bitcoin Moon, Bitcoin News, Bitcoin Today, Best Bitcoin Analysis, Bitcoin price, Bitcoin to 0, Where is Bitcoin Going, Bitcoin bottomed
Views: 6436 Krown's Crypto Cave
A primer to Bitcoin and the Blockchain | Adam Winter | TEDxColumbus
 
10:57
Adam Winter, CTO of Clarus Solutions, is a technologist with an eye on future trends. Virtually every transaction comes with an intermediary involved. He describes the technology behind Bitcoin, a prominent cryptocurrency that operates without a financial intermediary and the future technology of the blockchain which will enable a wide range of peer-to-peer applications without intermediaries. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
Views: 9567 TEDx Talks
Mining Bitcoin with Excel
 
07:17
Learn how to mine Bitcoin with an Excel spreadsheet. Check out the following video for info on 21's Bitcoin computer, which can actually be used to mine Bitcoins and monetize your endpoint: https://youtu.be/mLwbBojDD_U In this video, we explain the algorithm behind Bitcoin mining and show you how you could (in theory) do it yourself! Download the spreadsheet here: https://www.dropbox.com/s/2erhq2uum7fvdc2/Bitcoin.xlsx?dl=0 See more at www.knowledgevideos.net The algorithm is from Jersey: 13GFWmp4HWdidJaTxWHCcaHPrqBPfddDHK NIST SHA-256 Description: http://csrc.nist.gov/groups/STM/cavp/documents/shs/sha256-384-512.pdf
Views: 172204 Knowledge
Le bitcoin et la block chain (Master Class) Livre Audio Gratuit
 
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Obtenez un livre audio complet de votre choix, légalement et sans frais : http://rven.space/11/b07655tk1w Format: Original Recording Auteur: Gabriel Jarrosson Date de publication: 10/6/2017 Durée: 46 mins Langue: Français Genre: nonfiction, politics Résumé: Dans cette formation vous allez apprendre : Key takeaways : Présentation du Cours : Le bitcoin met en question une pratique ancestrale qui voulait que l'émission de la monnaie fusse un prérogative de l'État. Jusqu'à la création du bitcoin en 2009, les monnaies privées n'avaient ni notoriété ni perspective. L'apparition du bitcoin et des autres crypto-monnaies a été rendu possible par une technologie nouvelle : la blockchain. Comment "marche" le bitcoin ? Que peut-il devenir ? Que va-t-il changer dans nos vies ? S'agit-il d'une vraie révolution ou d'une simple vaguelette sur l'océan de la spéculation ? Autant de questions émergentes sur lesquelles Gabriel Jarrosson vous donne les éléments pour vous forger une opinion. À propos de l'auteur : Gabriel Jarrosson Gabriel Jarrosson vend son premier site internet à l'âge de 13 ans. En 2011, en école d'ingénieur, il crée sa première société dont il s'occupe pendant les cours. Contactez-moi pour toute question: [email protected]
Bitcoin ke unconfirmed transaction confirm  kaise kare !!
 
05:11
blockchain.info/pushtx https://blockchain.info/tx/3db1e8d36e6a070cc33f6f4c034a816ed92e50cef41f2e172e2cd173a2963db7?format=hex https://live.blockcypher.com/btc/pushtx/ https://pool.viabtc.com/tools/BTC/broadcast/
Views: 290 ONLINE SUPPORT
BlockChain Crypto Currency, Bitcoin / Z Cash, Ethereum, Litecoin
 
04:45
BlockChain Crypto Currency, Bitcoin / Z Cash, Ethereum, Litecoin A blockchain facilitates secure online transactions. A blockchain is a decentralized and distributed digital ledger that is used to record transactions across many computers so that the record cannot be altered retroactively without the alteration of all subsequent blocks and the collusion of the network. This allows the participants to verify and audit transactions inexpensively. They are authenticated by mass collaboration powered by collective self-interests.[33] The result is a robust workflow where participants' uncertainty regarding data security is marginal. The use of a blockchain removes the characteristic of infinite reproducibility from a digital asset. It confirms that each unit of value was transferred only once, solving the long-standing problem of double spending. Blockchains have been described as a value-exchange protocol. This blockchain-based exchange of value can be completed more quickly, more safely and more cheaply than with traditional systems. A blockchain can assign title rights because it provides a record that compels offer and acceptance. A blockchain database consists of two kinds of records: transactions and blocks.Blocks hold batches of valid transactions that are hashed and encoded into a Merkle tree.[1] Each block includes the hash of the prior block in the blockchain, linking the two. Variants of this format were used previously, for example in Git. The format is not by itself sufficient to qualify as a blockchain. The linked blocks form a chain.[1] This iterative process confirms the integrity of the previous block, all the way back to the original genesis block. Some blockchains create a new block as frequently as every five seconds. As blockchains age they are said to grow in height. Produced by Shawn Kober a Big Planet Media Production contact us at www.bigplanetmedia.com 660-864-3423
Views: 139 Big Planet Media
Bitcoin fork Explained
 
02:59
To clarify, we've assembled quick rundown on how different forks work. http://www.coindesk.com/short-guide-bitcoin-forks-explained/ The basics Before we get into the classifications, it's worth noting that bitcoin forks already occur quite regularly. A byproduct of distributed consensus, forks happen anytime two miners find a block at nearly the same time. The ambiguity is resolved when subsequent blocks are added to one, making it the longest chain, while the other block gets "orphaned" (or abandoned) by the network. But forks also can be willingly introduced to the network. This occurs when developers seek to change the rules the software uses to decide whether a transaction is valid or not. When a block contains invalid transactions, that block is ignored by the network, and the miner who found that block loses out on a block reward. As such, miners generally want to mine only valid blocks and build on the longest chain. Following are some of the more common forks and their traits. Hard fork What is it? A hard fork is a software upgrade that introduces a new rule to the network that isn't compatible with the older software. You can think of a hard fork as an expansion of the rules. (A new rule that allows block size to be 2MB instead of 1MB would require a hard fork). What happens? Nodes that continue running the old version of the software will see the new transactions as invalid. So, to switch over to the new chain and to continue to mine valid blocks, all of the nodes in the network need to upgrade to the new rules. What can go wrong? The problem comes when some sort of political impasse arises, and a portion of the community decides to stick by the old rules no matter what. The hash rate, or network computing power, behind the old chain is irrelevant. What matters is that its data (and ruleset) is still perceived to have value, meaning miners still want to mine a chain and developers still want to support it. The ethereum DAO hard fork was a perfect case study of how a community can split over rules. Now, we have two blockchains using a variant of the software – ethereum and ethereum classic, both of which boast a different ethos and a different currency. Soft fork What is it? A soft fork, by contrast, is any change that's backward compatible. Say, instead of 1MB blocks, a new rule might only allow 500K blocks. What happens? Non-upgraded nodes will still see the new transactions as valid (500k is less than 1MB in this example). However, if non-upgraded nodes continue to mine blocks, the blocks they mine will be rejected by the upgraded nodes. This is why soft forks need a majority of hash power in the network. What can go wrong? When a soft fork is supported by only a minority of hash power in the network, it could become the shortest chain and get orphaned by the network. Or, it can act like a hard fork, and one chain can splinter off. Soft forks have been the most commonly used option to upgrade the bitcoin blockchain so far because it's argued they present a lower risk of splitting the network. Past examples of successful soft forks include software upgrades like BIP 66 (which dealt with signature validation) and P2SH (which altered bitcoin's address formatting). User-activated soft fork What is it? A user-activated soft fork (UASF) is a controversial idea that explores how a blockchain might add an upgrade that is not directly supported by those who provide the network's hashing power. The idea with UASF is that instead of waiting for a threshold of support from mining pools, the power to activate a soft fork goes to the exchanges, wallets and businesses who are running full nodes. (In bitcoin, a full node, even if it is not a mining node, is still responsible for validating blocks.) What happens? The majority of major exchanges would need to publicly support the change before it could be written into a new version of code. After that, the new software (which has an activation point in the future) gets installed on nodes that want to participate in the soft fork. What can go wrong? This method requires a much longer lead time to work than a hash-power-triggered soft fork. In fact, it's believed it may take as long as a year or more to write the code and get everyone ready. Further, if the majority of miners end up not ‘falling in line’ and activating the new rules, they could use their overwhelming hash power to split the network. Currently this idea is theoretical and has not been implemented.
Views: 176 Bounce Twins
Future of Blockchain | Chelsea Rustrum | TEDxBoulder
 
08:19
Blockchain is extremely interesting as used as a currency, but what does it look like in everyday use? How will the world change if this is adopted? Chelsea Rustrum explores shared ownership and value distribution through the lens of the sharing economy and blockchain technology. She’s the author of It’s a Shareable Life, the founder of Blockchain for Good, a social and educational series, and the co-founder of Blox 7, a new economy storytelling agency. Chelsea grew up a teenage entrepreneur building businesses online from middle school onward. Later she understood how sharing time, space, and resources could transform human relationships and exchange. Today, she works toward creating systems, structures, and financial models that reinforce our interdependence. To that end, she’s working on a collaborative Blockchain Code of Ethics to program the future with collectively aligned values. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
Views: 37044 TEDx Talks
Evolution of Blockchain in India:The value of Ownership | Mr.Akash Gaurav | TEDxKIITUniversity
 
14:01
Akash Gaurav is the founder of India's first block-chain company, Auxesis group which is one of the top 100 most influential Block-chain companies till date around the globe. He is a graduate from IIT Bombay and also the founder of Auxledger Foundation and Block-chain Lab,India. Being a part of advisory board of hot Block-chain startup Cashaa and VEDA, an enterprise decentralised apps network, he has worked with a dedicated team of researchers and entrepreneurs guiding them to dream and achieve big. He explores over different diversified platforms including Ethereum contracts and Bitcoin block-chain meticulously in various constructive tangents. In the video,he talks about trusting intermediary bodies in entrepreneurship and the potential theories of Block-chain.He also discusses about the Bitcoin and Block-chain ecosystem in India and the rising interest of capital investors in this sector.His innovations have developed Cryptocurrency wallets and typically explains the consensus mechanism tool in reducing the trust gap in the society. A Blockchain entrepreneur and the Founder of India’s first Blockchain company, Auxesis Group, one of the top 100 most influential Blockchain companies till date. An alumnus of IIT Bombay, he also founded the Blockchain Lab, India and Auxledger Foundation. He is in the Advisory board of Hot Blockchain Startup Cashaa, a zero-fee money remittance company, and VEDA- and enterprise of decentralised apps network. He is also a mentor in the Entrepreneurship Club at MISB, Bocconi. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
Views: 1051 TEDx Talks
Blockchain 101 Ep 04 - The Birth of the first Bitcoin!
 
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The Birth of the first Bitcoin! The big day came on January 4th 2009, 3 months after the publication of Bitcoin White Paper. Satoshi Nakamoto, Bitcoin whitepaper author, produced the first block of Bitcoin , “The Genesis Block”, on a small server located in Helsinki, Finland. For that, Satoshi Nakamoto obtained the first 50 Bitcoins as the reward. To commemorate the birth of Bitcoin, Mr. Nakamoto put that day’s headline of The Times article about a possible bailout for banks in the UK into the first block. Mr. Nakamoto did that to authenticate the time of Bitcoin's birth. What a brilliant mind! Huobi Pro will post a question in our Tweet via our Twitter account each time we put up an episode of Blockchain 101 post on our Twitter account, first 20 people who answered in the format [UIDxxxxxxxx, correct answer] and retweet our post will be entitled to 1 HT each. Note that the UID entered MUST be a valid Huobi registered account. Eligible winners from each episode will be awarded with HT which will be deposited into your Huobi Pro account on the following Tuesday. What are you waiting for? Fastest fingers first! Grab your HT now! Official Twitter account: https://twitter.com/Huobi_Pro
Views: 1758 Huobi Global
Blockchain 101 Ep 23 - What is mining?
 
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Mining is validating transactions initiated in the Bitcoin network within a timeframe, updating and adding new blocks on the blockchain. Those who mine are called miners. Simply put, mining is a bookkeeping process where miners are the bookkeepers and blockchain is the ledger. What motivates miners to keep mining? Bitcoin adopts a “distributed updated system” where every miner competes for the right to update the ledger. The one who gets to update the ledger in the new block will receive newly generated Bitcoins as a reward. Therefore, mining generates Bitcoins. Initially, Satoshi designed the system such that after every 210,000 blocks, the Bitcoin block reward will be halved, until it reaches the smallest fraction of one Bitcoin. Hence, Bitcoin has a supply cap, similar to gold. Hence, people often call Bitcoin “digital gold” and its creation process, “mining”. Watch the video here! Huobi Pro will post a question in our Tweet via our Twitter account (https://twitter.com/Huobi_Pro) each time we put up an episode of Blockchain 101 post on our Twitter account, we will randomly select 20 people who answered in the format [UIDxxxxxxxx, correct answer] and retweet our post will be entitled to 1 HT each. Note that the UID entered MUST be a valid Huobi registered account. What are you waiting for? Fastest fingers first! Grab your HT now!
Views: 803 Huobi Global
How Bitcoin works - Programmer explains
 
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What is Bitcoin and how does Bitcoin actually work? What is the Blockchain and how does it relate to Bitcoin? What are the usecases of Bitcoin and why is it so valuable? Why is the Bitcoin price so volatile and what is the future of Bitcoin? These and many more questions are answered in this video. The format is such that my good friend Oscar who knows very little about Bitcoin asks me questions about Bitcoin, questions he has been thinking of himself when he heard about Bitcoin on the television, in the media, online, on social networks, from friends etc. The reason why I think this format is beneficial is because many new people to this space are probably are asking the same questions. This video will help with your understanding Bitcoin Let me know what you think guys? FIND OSCAR 💝👬 https://www.youtube.com/user/oscaralsing www.oscaralsing.com JOIN MY EXCLUSIBE MAILING LIST FOR EVEN MORE BLOCKCHAIN KNOWLEDGE: http://eepurl.com/c0hyc9 ESSENTIAL CRYPTO RESOURCES Hardware wallets: ♥ TREZOR https://trezor.io ♥ LEDGER NANO S https://www.ledgerwallet.com/r/4607 ♥ Coinbase https://www.coinbase.com/join/529bab0ab08ded7080000019 JOIN SLACK COMMUNITY http://slack-invite-ivan-on-tech.herokuapp.com https://steemit.com/@ivanli
Views: 9265 Ivan on Tech
Blockchain tutorial 27: Bitcoin raw transaction and transaction id
 
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This is part 27 of the Blockchain tutorial. This tutorial explains: - What Bitcoin raw transaction is. - Shows an example of a raw transaction using the very first transaction on the Genesis block. - What the difference is between big endian and little endian. - What a satoshi is. - What a Bitcoin transaction id or hash is and what its purpose is. - How to calculate the transaction id. In this video series different topics will be explained which will help you to understand blockchain. Bitcoin released as open source software in 2009 is a cryptocurrency invented by Satoshi Nakamoto (unidentified person or group of persons). After the introduction of Bitcoin many Bitcoin alternatives were created. These alternate cryptocurrencies are called Altcoins (Litecoin, Dodgecoin etc). Bitcoin's underlying technology is called Blockchain. The Blockchain is a distributed decentralized incorruptible database (ledger) that records blocks of digital information. Each block contains a timestamp and a link to a previous block. Soon people realises that there many other use cases where the Blockchain technology can be applied and not just as a cryptocurrency application. New Blockchain platforms were created based on the Blockchain technology, one of which is called Ethereum. Ethereum focuses on running programming code, called smart contracts, on any decentralized application. Using the new Blockchain platforms, Blockchain technology can be used in supply chain management, healthcare, real estate, identity management, voting, internet of things, etcetera, just to name a few. Today there is a growing interest in Blockchain not only in the financial sector but also in other sectors. Explaining how Blockchain works is not easy and for many the Blockchain technology remains an elusive concept. This video series tries to explain Blockchain to a large audience but from the bottom up. Keywords often used in Blockchain conversation will be explained. Each Blockchain video is short and to the point. It is recommended to watch each video sequentially as I may refer to certain Blockchain topics explained earlier. Check out all my other Blockchain tutorial videos https://goo.gl/aMTFHU Subscribe to my YouTube channel https://goo.gl/61NFzK The presentation used in this video tutorial can be found at: http://www.mobilefish.com/developer/blockchain/blockchain_quickguide_tutorial.html The 3 links mentioned in the video are: - The bitcoin_genesis_raw_tx.txt file http://www.mobilefish.com/download/cryptocurrency/bitcoin_genesis_raw_tx.txt - The Bitcoin protocol: https://en.bitcoin.it/wiki/Protocol_documentation#tx - The block explorer used in the video: https://blockchain.info/ The python script to calculate the transaction id: http://www.mobilefish.com/download/cryptocurrency/calculate_txid.py.txt The brainwallet tool to convert the raw transaction into a more readable text: http://www.mobilefish.com/services/cryptocurrency/brainwallet.html #mobilefish #blockchain #bitcoin #cryptocurrency #ethereum
Views: 6185 Mobilefish.com
LIVE Bitcoin Ethereum Constantinople! - February 2019 Price Prediction & News Analysis
 
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Krown's Crypto Cave Discord - https://discord.gg/5Zwuum8 ***My fully comprehensive road map to becoming a COMPLETE Trading Boss! + VIP DIscord Access*** https://krown-trading.teachable.com/p/trade-like-a-professional-the-art-and-application-of-technical-analysis/ All my trading strategies revealed in a series of 39 Modules of Video and PowerPoint presentation format over 32 hours long + Bonus Material & Access to Two Proprietary Indicators! Reviews inside! ***Master Your Options*** - https://krown-trading.teachable.com/p/master-your-options/ - Years as a Professional Market Maker Authorized Trader synthesized down into a 42 Module Road Map for the Purpose of Derivative Domination ***Krown Jewel Indicator Mastery*** https://krown-trading.teachable.com/?affcode=236462_6ozjtirq My preferred method of scalping by timing both entries and exits with 5 unique oscillators each suited for specific trading styles ***Bitcoin Options + Futures Exchange*** (Discounted Fees Link) - https://www.deribit.com/reg-1170.7653 ***www.justlearnbitcoin.com*** The Digital Den - https://discord.gg/CsvbmDQ Checkout Bitmex (best for liquidity and leverage) - https://www.bitmex.com/register/4l6ovV this link will give you reduced fees. ***Complementary Portfolio Tracking and Balancing Tool*** https://docs.google.com/spreadsheets/d/1Y8WtgxCZen4yt8UwAmqxQjfDR42-kFQ8iRx_3rJi0CI/edit#gid=1158545460 ***Complementary Tutorial Series*** -BitMEX- https://youtu.be/tMGvXHixpzc ***Trusted & Discounted Ledger Products*** https://www.ledgerwallet.com/r/a409 If you feel so inclined to support my Coffee and Ground Beef Diet then here is a link to my BTC address - 3QnMhH3QKjoNMprArJ2PyY2t8MWPCDtmJv TradingView Affiliate Link - Gain Access to ALL of TradingView's Professional Features! https://tradingview.go2cloud.org/aff_c?offer_id=2&aff_id=11546 Also checkout my Steemit Account as I do post exclusive content here - https://steemit.com/@realcrowncrypto Twitter for Intra-day Mini Update - https://twitter.com/KrownCryptoCave Recommended Reading for Learning the Art of Trading - Technical Analysis and Stock Market Profits https://amzn.to/2qQAz7A Reminiscences of a Stock Operator https://amzn.to/2F3WD3G Legal Disclaimer - This video is meant for entertainment and educational purposes and is NOT intended as financial advice. ENJOY! #Bitcoin #BitcoinNews #BitcoinAnalysis Live Bitcoin Analysis, Top bitcoin analysis, price prediction, Bitcoin Trading, Bitcoin 2018, Bitcoin Crash, Bitcoin Moon, Bitcoin News, Bitcoin Today, Best Bitcoin Analysis, Bitcoin price, Bitcoin to 0, Where is Bitcoin Going, Bitcoin bottomed, live bitcoin analysis, live bitcoin, Bitcoin News, Bitcoin Today, Crypto, Crypto News, Crypto Analysis, Crypto Price
Views: 5427 Krown's Crypto Cave
Bitcoin The ONE Thing YOU Must Know! February 2019 Price Prediction, News & Trade Analysis
 
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***My fully comprehensive road map to becoming a COMPLETE Trading Boss! + VIP DIscord Access*** https://krown-trading.teachable.com/p/trade-like-a-professional-the-art-and-application-of-technical-analysis/ All my trading strategies revealed in a series of 39 Modules of Video and PowerPoint presentation format over 32 hours long + Bonus Material! Reviews inside! ***Master Your Options*** - https://krown-trading.teachable.com/p/master-your-options/ - Years as a Professional Market Maker Authorized Trader synthesized down into a 42 Module Road Map for the Purpose of Derivative Domination ***Krown Jewel Indicator Mastery*** https://krown-trading.teachable.com/?affcode=236462_6ozjtirq My preferred method of scalping by timing both entries and exits with 5 unique oscillators each suited for specific trading styles Complimentary 10% off trading fees for Deribit ***https://www.deribit.com/reg-1170.7653*** Complimentary 10% off trading fees for BitMEX https://www.bitmex.com/register/4l6ovV ***Cave Discord*** https://discord.gg/5Zwuum8 ***Digital Den*** https://discord.gg/CsvbmDQ Please do consider gently tapping the like & subscribe button as I update my thoughts on the market daily! ***Complimentary Portfolio Tracking and Balancing Tool*** https://docs.google.com/spreadsheets/d/1Y8WtgxCZen4yt8UwAmqxQjfDR42-kFQ8iRx_3rJi0CI/edit#gid=1158545460 If you feel so inclined to support my Coffee and Ground Beef diet then here is a link to my BTC address - 3QnMhH3QKjoNMprArJ2PyY2t8MWPCDtmJv Recommended Reading for Learning the Art of Trading - Technical Analysis and Stock Market Profits https://amzn.to/2qQAz7A Reminiscences of a Stock Operater https://amzn.to/2F3WD3G Also checkout my Steemit Account as I do post exclusive content here - https://steemit.com/@realcrowncrypto Twitter for Intra-day Mini Update - https://twitter.com/KrownCryptoCave #Bitcoin #BitcoinNews #BitcoinAnalysis Disclaimer - The content in this video and on this channel are not intended to be financial advice. The content in this video and on this channel are only intended for entertainment purposes only! Bitcoin Analysis, Top bitcoin analysis, price prediction, Bitcoin Trading, Bitcoin 2018, Bitcoin Crash, Bitcoin Moon, Bitcoin News, Bitcoin Today, Best Bitcoin Analysis, Bitcoin price, Bitcoin to 0, Where is Bitcoin Going, Bitcoin bottomed
Views: 4586 Krown's Crypto Cave
Bitcoin Q&A: What is Segregated Witness?
 
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What is Segregated Witness (SegWit)? How do you know you’re using SegWit? SegWit fixes transaction malleability and enables further upgrades towards Bitcoin smart contracts. Can transaction malleability lead to denial-of-service (DoS) attacks? Does SegWit put witness data in a different block? Did SegWit change transaction validation? versus? Are there any security risks of invalid blocks? CORRECTION: At ~2:07, I stated the incorrect BIP number for the Bech32 address format, which should be BIP173. BIP176 is about "bits" denomination. https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki More on SegWit: https://bitcoincore.org/en/2016/01/26/segwit-benefits/ These questions are from the MOOC 9.3 and 9.5 sessions which took place on March 2nd and March 16th, 2018 respectively. Andreas is a teaching fellow with the University of Nicosia. The first course in their Master of Science in Digital Currency degree, DFIN-511: Introduction to Digital Currencies, is offered for free as an open enrollment MOOC course to anyone interested in learning about the fundamental principles. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: The Lightning Network - https://www.youtube.com/playlist?list=PLPQwGV1aLnTurL4wU_y3jOhBi9rrpsYyi SegWit adoption - https://youtu.be/KCsTVTRk6I4 Advanced Bitcoin Scripting Part 1: Transactions and Multi-sig - https://youtu.be/8FeAXjkmDcQ Advanced Bitcoin Scripting Part 2: SegWit, Consensus, and Trustware - https://youtu.be/pQbeBduVQ4I How do I choose a wallet? - https://youtu.be/tN6b62sEpsY Hot vs. cold wallets - https://youtu.be/Aji_E9sw0AE SegWit adoption - https://youtu.be/KCsTVTRk6I4 Secure, tiered storage system - https://youtu.be/uYIVuZgN95M Decentralised exchanges and counterparty risk - https://youtu.be/hi_jaw0dT9M Decentralised exchanges with fiat - https://youtu.be/3Url8tbQEkA How do I secure my bitcoin? - https://youtu.be/vt-zXEsJ61U How do mnemonic seeds work? - https://youtu.be/wWCIQFNf_8g HODLing and the "get free" scheme - https://youtu.be/MhOwmsW1YNI How to get people to care about security - https://youtu.be/Ji1lS9NMz1E Bitcoin as everyday currency - https://youtu.be/xYvvSV4mjH0 Irreversibility and consumer protection - https://youtu.be/R107YWu5XzU Hyperbitcoinization - https://youtu.be/AB5MU5fXKfo Job opportunities with cryptocurrencies - https://youtu.be/89_p4pDlQtI How long until mainstream adoption? - https://youtu.be/y3cKBDBabtA What is the biggest adoption hurdle? - https://youtu.be/jHgyHF3F2TI Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Subscribe to the channel to learn more about Bitcoin & open blockchains! Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 13021 aantonop
Blockchain 101 Ep 20 - What happens after I initiate a Bitcoin transaction?
 
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When you initiate a Bitcoin transaction, the information is broadcasted to the whole network, after mining nodes receive the information, they will store it in a local pool for some basic validations, such as checking for double spending. If it’s valid, it will then be moved to the pool of “Unconfirmed Transactions” for processing. If it fails, this transaction, marked as an “Invalid Transaction”, will not be processed. This means mining nodes are not only competing with their hashing power, but also validating transactions promptly to update their pool of “Unconfirmed Transactions.” After obtaining the right to update the ledger, miners will take around 1000 transactions from the “Unconfirmed Transactions” pool to process. Sometimes our transaction may not be processed in time, due to an overwhelmingly number of unconfirmed transactions and each block can only record a limited number of transactions. Watch the video here! Huobi Pro will post a question in our Tweet via our Twitter account (https://twitter.com/Huobi_Pro) each time we put up an episode of Blockchain 101 post on our Twitter account, we will randomly select 20 people who answered in the format [UIDxxxxxxxx, correct answer] and retweet our post will be entitled to 1 HT each. Note that the UID entered MUST be a valid Huobi registered account. What are you waiting for? Fastest fingers first! Grab your HT now!
Views: 735 Huobi Global
How Blockchain can transform India | Jaspreet Bindra | TEDxChennai
 
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Blockchain is currently at the peak of the Hype Cycle. It is a simple concept, yet difficult to understand and comprehend. It is also in the same place as the Internet was in 1995 – very early, with its major applications yet to be built. Blockchain is a much a philosophy as a technology, and has the potential to change the world as the Internet did. It promises to radically transform identity, agriculture, money, energy, governance, and pretty much everything else, especially in the emerging countries. This TEDx talk demystifies blockchain as never before, and explains how it can change the world around you… Jaspreet Bindra is a digital transformation and Blockchain expert. Until very recently, he was the Chief Digital Officer of $20bn Mahindra Group; and he continues as their Digital Adviser. He speaks, writes, teaches and consults on Digital Transformation and Blockchain, and is currently building a company around the same. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
Views: 580386 TEDx Talks
Blockchain: Más allá del bitcoin | José Juan Mora | TEDxSevilla
 
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Exposición que explica los motivos por los que blockchain será el protocolo que dominará las comunicaciones comerciales del futuro así como su origen a partir de las implementaciones de bitcoin y otras monedas virtuales. Socio de Kolokium, una de las primeras empresas españolas dedicadas al desarrollo de aplicaciones en torno a Blockchain. Tengo la enorme fortuna de haber estado los últimos 15 años trabajando en mi hobby, las tecnologías relacionadas con los sistemas de información. De mi pasión por la tecnología y mi afición a la escritura nacieron mis dos libros "Capacity Planning IT: Una aproximación práctica" y "DevOps y el camino de baldosas amarillas". Soy un convencido de que lo realmente importante de la tecnología son las personas y me esfuerzo cada día en promover esta visión antropocéntrica de la tecnología. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx
Views: 250904 TEDx Talks
Bitcoin and the Blockchain | Rick Falkvinge | TEDxBucharest
 
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The internet brings much more changes than we could possibly ever imagine, typical of a very disruptive technology, as the generation who invents it can only think of the new technology in terms of what is replacing. But it's the generation after them which sees the new technology in its own right, in its own potential and builds things on it on its own merits. It happened with the electricity, with the print press and with every major disruptive technology, now it's happening with the internet. In a true Future Spoiler, Rick shares with the audience how bitcoin and it's underline technology, the blockchain technology, will influence the power struggles for the next decades, where the power will about the ledger on top of everything else, a fight which will stand over finance and core governmental functions. Rick Falkvinge | Political Evangelist | Founder of the Swedish Pirate Party | www.falkvinge.net | An entrepreneur from the age of 16, Rick is the Founder of the first Pirate Party. Under his leadership, the Party had a resounding success at the 2009 European Elections, with two elected representatives. He is now a political evangelist for his ideas on freedom of speech and expression. While Foreign Policy Magazine named Rick a Top Global Thinker, TIME Magazine shortlisted him as one of the world’s most influential people. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx
Views: 71301 TEDx Talks